[  502.208230] bond0: (slave eth0): making interface the new active one
[  502.208322] bond0: (slave eth0): Enslaving as an active interface with an up link
[  506.390703] bond0: (slave eth0): Releasing backup interface
[  506.473753] bond0: (slave eth0): Enslaving as an active interface with an up link
[  510.619451] bond0: (slave eth0): Releasing backup interface
[  510.651426] bond0 (unregistering): Released all slaves